Claiming more: the Increased Voluminosity of Patent Applications and its Determinants
Nicolas van Zeebroeck (),
Bruno van Pottelsberghe de la Potterie and
Research Policy, 2009, vol. 38, issue 6, 1006-1020
The size of patent applications has doubled over the past two decades, resulting in a dramatic surge in the workload of patent offices all over the world and serious concerns over patent quality standards. The current paper investigates the sources of this inflation in claims and pages for EPO applications. Four hypotheses are quantitatively examined: the diffusion of national drafting practices, the complexity of research activities, the emergence of new sectors, and filing strategies. The results validate the four hypotheses. They reveal major differences across countries in patent drafting styles, especially between Civil and Common Law countries, the latter being characterized by much larger patents. Second, the success of the PCT route is leading to the harmonizing of drafting styles worldwide on the US model. This paper therefore challenges the commonly accepted idea that more claims reflect a broader scope of protection by showing that the size of patents is partly due to institutional changes in the system.
Keywords: Patent; size; Patent; scope; IP; strategy; Claim; drafting; Patent; systems (search for similar items in EconPapers)
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (37) Track citations by RSS feed
Downloads: (external link)
Full text for ScienceDirect subscribers only
Working Paper: Claiming more: the increased voluminosity of patent applications and its determinants (2009)
Working Paper: Claiming More: The Increased Voluminosity of Patent Applications and its Determinants (2006)
Working Paper: Claiming more: the increased voluminosity of patent applications and its determinants (2006)
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
Persistent link: https://EconPapers.repec.org/RePEc:eee:respol:v:38:y:2009:i:6:p:1006-1020
Access Statistics for this article
Research Policy is currently edited by M. Bell, B. Martin, W.E. Steinmueller, A. Arora, M. Callon, M. Kenney, S. Kuhlmann, Keun Lee and F. Murray
More articles in Research Policy from Elsevier
Bibliographic data for series maintained by Dana Niculescu ().